HamTV
On
board Columbus, the HamVideo transmitter is fully operational and
provides permanent DATV signals, allowing ground stations to fine tune
their receiving equipment. When possible, ARISS school contacts are
enhanced by crew operated HamTV.
The
demand for a dedicated HamTV receiver is growing. Jean-Pierre Courjaud
F6DZP developed an up-to-date receiver and wrote special software for
HamTV. He dubbed the receiver TuTiouner and the software Tutioune
(phonetic French transcript for “You tune”).
Components
for the TuTioune receiver are for sale at the BATC shop (British
Amateur Television Club).The software is available for free on
Jean-Pierre’s website.
Full details, including schematics, are provided on the HamTV home page:
Now
and then, the HamVideo transmitter must be powered down, for several
reasons. The status of the transmitter is published on the same webpage.
The decoded video and audio are webstreamed by the ground stations to
a dedicated multi viewer, courtesy of the British Amateur Television
Club (BATC).
The school, as well as interested parties, can view the HamVideo stream real time at:
http://www.batc.tv/iss/
For HamTV enhanced school contacts, the audio exchange between the school and the astronaut on board the ISS is done on VHF or on UHF. There is no synchronization between the VHF or UHF audio and the webstreamed video. The video is delayed a few seconds versus the audio. This is due to the digital processing and the webstreaming of the video.
The school, as well as interested parties, can view the HamVideo stream real time at:
http://www.batc.tv/iss/
For HamTV enhanced school contacts, the audio exchange between the school and the astronaut on board the ISS is done on VHF or on UHF. There is no synchronization between the VHF or UHF audio and the webstreamed video. The video is delayed a few seconds versus the audio. This is due to the digital processing and the webstreaming of the video.
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου